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Table 1 Viscous energy loss characteristics of AVSD- repaired patients in the presence and absence of E-filling vortex ring formation

From: Impact of disturbed diastolic vortex formation on viscous energy loss in the left ventricle: Quantitative 4D Flow MRI analysis of healthy controls and repaired atrioventricular septal defect patients

 

Control (N=23)

Patients with absent E-vortex ring core (N=5)

Patients with E-vortex ring core (N=18)

EL (mJ/mL) a

0.21 ±0.07

0.77 ± 0.56*

0.25 ± 0.08

VFT

2.85 ±0.57

5.65 ± 2.1*

2.36 ± 0.61

Inflow area (cm2)

8.6 ± 1.9

5.7 ± 1.6*

9.08 ± 2.69

Age (yrs)

19 ± 8

18 ± 6

20 ± 8

Heart rate (bpm)

73 ± 13

82 ± 23

77 ± 10

Diastasis duration (ms)

91 ± 75

0 ± 0 (N=3) **

53 ± 68

E/A ratio

2.7 ± 0.7

2.9 ± 0.9 (N=3)**

2.4 ± 1.2

  1. a EL is normalized by end diastolic LV volume
  2. *statistically significant with P<0.01 compared to controls
  3. ** Two cases had no A-wave